Automobile-radiator



1|. WW 6 7 PM 7 v avwamtoz J. CLISH.

AUTOMOBILE RADIATOR.

APPLICATION FILED MAY 20. 1918.

Patented June 1, 1920.

J2. JZJMMA wow mass a o Sihtl JOSEPH CLISH, OF IRON MOUNTAIN, MICHIGAN.

AUTOMOBILE-RADIATOR.

near-tea.

Specification of Letters Patent.

Patented June it, 1926).

Application filed May 20, 1918. Serial No. 235,496.

T 0 all whom it may concern:

e it known that I, JOSEPH CLIsH, a citizen of the United States, residing at Iron Mountain, in the county of Dickinson and State of Michigan, have invented new and useful Improvements in Automobile-Radiators, of which the following is a specification.

This invention relates to improvements in automobile radiators and especially with reference to improvements in the construction and arrangement of the water tubes, the object of the invention being to provide an improved radiator the water tubes of wluch will not freeze so readily as those in the radiators now in common use and which, moreover, will avoid being injured in the event that they should become frozen, the invention consisting in the construction and arrangement of devices hereinafter described and claimed.

In the accompanying drawings Figure 1 isa front elevation of a radia-. tor constructed and arranged in accordance with my invention.

Fig. 2 is a horizontal sectional view on a larger scale.

Fig.3 is a detail of the spring clips.

in the embodiment of my invention, 1 provide water tubes 1, which are arranged vertically and in spaced relation and which are relatively narrow to present narrow front sides 2, broad side walls 3 and narrow rear sides 4 in horizontal section, as shown in Fig. 2. The front sides 2 are substantially semi-cylindrical. The central tube of the radiator is arranged with its axis in line with the radiator and the other water tubes are arranged in opposite sides of the radiator at an angle tothe central water tube and in spaced relation, so that the axes of the side water tubes are at an angle of about 35 with respect to that of the center perspective view of one water tube, the axes of the water tubes in opposite sides of the radiator being inclined in opposite directions, as shown in Fig. 2.

The side walls 3 of each water tube are concavo-convex and are arranged with their concaved sides outermost. Preferably, the water tubes are made of sheet metal but they may be made of any suitable material and may be of any suitable size and length.

wing to the construction of my improved water tubes they are each of greatly increased water capacity as compared with the.

cylindrical radiator water tubes now in common use, so that it requires a much lower temperature to freeze the water in my water tubes, and hence my improved radiator is especially adapted for use in cold weather. Owing to the provision of the inwardly bent side walls of the water tubes, the water capacity of the tubes is reduced at their centers and hence should the tubes become frozen the expansion incident to the freezing of the water in the tubes will press the side walls outwardly at their centers, so that the tubes will accommodate themselves to and will compensate for the expansion and bursting or other injury to the water tubes will be avoided.

In order to hold the side 'walls of the water tubes in their normal inwardly bent condition and at the same time enable said side walls to buckle or bend outwardly when the water in said tubes becomes frozen, 1 provide a spring clip or yoke 5 for each water tube. One of said spring clips or yokes is shown in detail in Fig. 3. Each spring clip or yoke comprises a central portion (lwhich is formed with inwardly bent and rearwardly extending spring arms 7 at the upper and lower ends and which spring arms are arranged astride of the water tube and bear at their rear ends against the opposite sides of the water tube, at or near the center, so that the spring arms, which tend to move toward each other, press and hold the side walls of the water tube in their normal inwardly bent condition. Said spring arms, however, permit the side walls of the water tube to bend or buckle outwardly when the water in the tube becomes frozen and expands. The spring yokes or clips can be readily attached to and removed from the water tubes, as will be understood.

While I have herein shown and described a preferred embodiment of my invention, I would have it understood that changes may be made in the form, proportion and arrangement of the several parts, without departing from the spirit of my invention, and within the scope of the appended claims.

Having thus described my invention, 1 claim 1. In combination with a radiator water tube. having inwardly bent side walls; a spring clip having horizontally spaced arms engageab c with said walls to hold said wallstoe in inwardly bent condition and permit the walls to bend or buckle and expand.

2. In combination with a radiator water tube having inwardly bent side walls, yieldable means to normally hold said side walls in inwardly bent condition and permit said side walls to bend or buckle and expand, said yieldable means comprising a spring clip adapted to be arranged on the water tube and having spring arms bearing against the '10 said side walls of the water tube. 3. The combination with a radiator Water tube having inwardly bent side walls, of a spring clip positioned over one edge of said tube and engageable with the side walls. '15 In testimony whereof I aflix my signature.

JOSEPH CLISH. 

